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Note 4 Line of Credit Facility (Details)
$ in Millions
6 Months Ended
Apr. 01, 2017
USD ($)
Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Maximum Borrowing Capacity $ 375.0
Long-term Line of Credit 0.0
Letters of Credit Outstanding, Amount $ 13.4
Expiration Date May 20, 2020
Additional Credit Line $ 125.0
Foreign Line of Credit  
Line of Credit Facility [Line Items]  
Maximum Borrowing Capacity 74.0
Long-term Line of Credit $ 0.0
Expiration Date Mar. 10, 2019